Demountable rim



K. B. RICE AND R. ELIVIUFFLY.

DEMOUNTABLE RIM.

APPLICATION FILED DEC. 5,19I9.

Patented Oct. 12, 1920.

UNITED STATES PATENT OFFICE.

xnnron 13. men AND ROSS n. MUFFLY, or canron, 01110; SAID MUFFLY S I or ONE-THIRD or HIS RIGHT TO SAID men.

DEMOUNTAIBLE RIM.

Specification of Letters Patent.

Patented Oct. 12, 1920.

To all whom it may conccm:

Be it known that we, Knnrox B. RICE and Ross E. MUFFLY, both citizens of the United States, residing at Canton, in the county of Stark and State of Ohio, have jointiy invented a new and useful Demountable im, of which the following is a specification.

This invention relates to an improvement .in demountable tire rims, especially adapted for the wheels of automobiles Ordinarily these rims are made of a single split ring, the object being to permit of a partial collapse of the rim when removed from the wheel in order to reduce the circumference thereof and enable the tire to be easily slipped over the rim after which the rim is snapped back into circular form with its edges abutting.

To those skilled in the art the difiiculties and disadvantages attending the use of the present forms of demountable rims are well known and the objects of the present invention are to provide a rim formed .of three hinged sections which may be quickly and readily collapsed to allow the tire to be slipped over; to provide hinges upon the rim sections integral with said sections;

and to generally improve and simplify rim constructions. I

With these objects in view the invention consists in the novel construction and arrangement of parts, hereinafter described, illustrated in the accompanying drawings, and particularly pointed out in the appended claim, it being understood that various changes in the form, proportions, size and minor details of construction may be made within the scope of the appended claim, without departing from the spirit or sacrificing any of the advantages of the invention.

The invention thus set forth in general terms is illustrated in the accompanying drawings forming part hereof, in which- Figure 1 is a side elevation of the rim collapsed within a tire.

Fig. 2 is a sectional view through one of the hinge joints.

Fig. 3 is a detail perspective view, of portions of adjacent ends of rim sections, the hinge pin being removed and the sections separated.

Fig. 4 is a detail perspective view of a portion of one of the modified form of hinge. A practical embodiment of the invention 1s dlsclosed in the accompanying drawings, formlng a part of this specification in which similar numerals of reference indicate'corresponding parts throughout the several views.

The .rim comprises three sections indicated by the numerals 1, 2 and 2, each of which is of arc shape and when these sections are joined together with their edges abutting they comprise a complete ring of circular formation.

The abutting extremities of the sections 2 and 2 are hingedly,connected together, the hinge being formed integral with "the two sections of the rim, suitable interlock- 1ng tongues 3 being stamped from .each of these SGCtlOIlS and pressed into tubular form as shown, a hinge pin 4 preferably of brass being located through said tubular portions.

sections, showing a The other extremity of each of theflsections 2* and 2 is provided with a pairof:

spaced integral tangs '5 stamped from the end of the section and pressed into tubular form as shown in the drawings, These tubular portions 5 are arranged to, register with a plurality of tubulan portions 6 upon the hinged member 7, a brass hinge pin 8 connecting the hinge in'the usualananner.

The hinge memberT'is provided upon its other end with similar tubular portions 9 arrangedto register with the tubular portions, 10 which are stamped from the'rim section 1 near the end thereof, a hinge pin 11 being located through said tubular mem-. here 9 and 10 as shown.

It will be noted that the rim section hinge joint formed by members 9 and 10 to be partly seated therein, thus materially reducing the obstruction upon the interior of the rim formed by thehinge joint. For the purpose of presenting a smooth surface upon the outer face of the rim, blocks 13 are carriedby the hinge member 7 and arranged to be received within the apertures 14 in the rim section 1 which apertures are formed by stamping the tubular portions 10 from the rim section.

In Fig. 4 is illustrated a slightly modified form of the construction in which a two part hinge is used. In this construction the 1 is: countersunk as shown at 12 to allow the hinge member 7 a is the same in construction as the hinge member 7, excepting that it is not provided with the blocks 13. A hinge member is connected to the rim section 1" by means of rivets or the like and is provided with spaced tangs bent into tubular form as shown at 10 and arranged to interlock with the tubular portions 9 upon the hinge member 7 a hinge pin 8 being provided through the hinge joint. The rim section 1 is provided with a counter-sunk portion 12 to receive the hinge joint, thus formed. The usual end of the hinge memher 7 is provided with the spaced tubular portions 6 arranged to register with tangs upon the adjacent section in the same manner as the portions 6 in the form illustrated in Figs. 1 to 3 inclusive.

In the collapsed portion the extremities of the sections 2 and 2 overlap the extremities of the section 1 and it will be apparent that the rim will be easily and readily collapsed without any difiiculty as there is no resistance to overcome. In the collapsed form the circumference of the rim is so reduced that the tire may be easily slipped over the rim to be removed or replaced thereon with a minimum of effort. The rim is of course provided with suitable flanges 16 to receive the tire in the usual manner.

e claim A demountable tire rim comprising three sections, two of said sections being provided at adjacent ends with integral hinge portions, the other extremities of said two sections being connected to the third section, each by a hinge member, integral hinge portions stamped from said third section and hingedly connected to said hinge member, and blocks carried by the hinge member and arranged to be received within the apertures from which said hinge portions are stamped.

In testimony that we claim the above, we have hereunto subscribed our names.

KENYON B. RICE. ROSS E. MUFFLY. 

